Problem: You are given three numbers. Is there a way to replace variables A, B and C with these numbers so the equality A + B = C is correct?

Input:

There are three numbers X1, X2 and X3 (1 ≤ Xi ≤ 10^100), each on a separate line of input.

Output:

Output either "YES", if there is a way to substitute variables A, B and C with given numbers so the equality is correct, or "NO" otherwise.

Sample Input:

1

2

3

Output:

YES

Sample Input:

1

2

4

Output

YES

Sample Input:

1

3

5

Output

NO

SAMPLE INPUT
1
2
3

SAMPLE OUTPUT
YES

Solution (in PYTHON):

Solution:
a=int(input())
b=int(input())
c=int(input())
if (a+b==c or a+c==b or b+c==a or 2*a==c or 2*a==b or 2*b==a or 2*b==c or 2*c==a or 2*c==b):
    print('YES')
else:
    print('NO')